2055516646 has 4 divisors (see below), whose sum is σ = 3083274972. Its totient is φ = 1027758322.

The previous prime is 2055516641. The next prime is 2055516689. The reversal of 2055516646 is 6466155502.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2055516599 and 2055516608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055516641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513879160 + ... + 513879163.

It is an arithmetic number, because the mean of its divisors is an integer number (770818743).

Almost surely, 2^2055516646 is an apocalyptic number.

2055516646 is a deficient number, since it is larger than the sum of its proper divisors (1027758326).

2055516646 is a wasteful number, since it uses less digits than its factorization.

2055516646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027758325.

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 2055516646 is about 45337.8059239748. The cubic root of 2055516646 is about 1271.4725816509.

The spelling of 2055516646 in words is "two billion, fifty-five million, five hundred sixteen thousand, six hundred forty-six".